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How it works

Continuous monitoring. Managed remediation.

NumberGuard monitors your numbers across the major spam databases and with live test calls on every major carrier. When a number is flagged, our remediation team manages the removal.

  1. 1

    Add your numbers

    Choose a plan and enter the business numbers you want monitored. NumberGuard works with any phone provider and requires no changes to your phone system.

  2. 2

    We register your numbers

    We enroll your numbers in the Free Caller Registry. Pro plans also include direct registration with the caller ID analytics providers the carriers rely on, establishing your numbers as a legitimate business.

  3. 3

    We monitor continuously

    We check your numbers against the spam databases used by carriers and call-blocking apps, and place live test calls to AT&T, T-Mobile, and Verizon devices on iPhone and Android, capturing exactly what appears on screen.

  4. 4

    You are alerted immediately

    If a number is flagged, you receive an email alert identifying the label and the carrier displaying it. Screenshots are available in your dashboard.

  5. 5

    We remediate

    Our remediation team files with each provider that labeled your number, manages all correspondence, and contacts you only if additional information is required. Remediation is included in every plan.

  6. 6

    We verify the result

    Once the label is removed, we confirm it with a follow-up scan. A case is closed only when your number returns to Healthy status.

Reputation protection

Protect your number before it gets flagged.

Your phone number is one of your most valuable business assets. NumberGuard protects it with continuous monitoring, and if a spam label appears, remediation is already included in your plan.

Continuous monitoring

Scheduled scans and live test calls detect labels within days, not months.

Remediation included

If a number is flagged, our team manages the removal at no additional cost.

Proactive registration

We register your numbers so carriers recognize them as a legitimate business.

Every carrier. Every device.

A number can be clean on one phone and flagged on another.

Each carrier relies on its own analytics provider, and iPhones and Android phones display caller ID differently. Many Android phones also apply their own built-in spam detection. A number can show a spam warning on a Verizon iPhone and display normally on a Verizon Android, while the reverse is true on AT&T.

Live test calls on six combinations

We place live calls to iPhone and Android devices on AT&T, T-Mobile, and Verizon and capture exactly what appears on each screen.

Spam database monitoring

We also check your numbers against the databases that drive carrier warnings and call-blocking apps, so issues surface early.

Example test results for one phone number by carrier and device
Carrier iPhone Android
AT&T Clean Flagged
T-Mobile Clean Clean
Verizon Flagged Clean
Example results for one number. Spam database results were clear, but live test calls found labels on two devices.

Protect your number before it costs you calls.

Most businesses never learn their numbers are flagged. They only see answer rates decline. Enroll online today, and our team handles the rest.

Protect my number From $49/mo